java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label03_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:40:16,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:40:16,493 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:40:16,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:40:16,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:40:16,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:40:16,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:40:16,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:40:16,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:40:16,516 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:40:16,517 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:40:16,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:40:16,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:40:16,520 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:40:16,521 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:40:16,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:40:16,523 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:40:16,524 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:40:16,527 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:40:16,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:40:16,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:40:16,531 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:40:16,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:40:16,533 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:40:16,533 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:40:16,534 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:40:16,535 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:40:16,536 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:40:16,537 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:40:16,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:40:16,538 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:40:16,539 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:40:16,539 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:40:16,540 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:40:16,541 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:40:16,541 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:40:16,542 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:40:16,557 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:40:16,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:40:16,558 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:40:16,559 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:40:16,559 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:40:16,559 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:40:16,559 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:40:16,560 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:40:16,560 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:40:16,560 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:40:16,560 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:40:16,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:40:16,561 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:40:16,561 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:40:16,561 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:40:16,562 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:40:16,562 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:40:16,562 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:40:16,562 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:40:16,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:40:16,563 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:40:16,563 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:40:16,563 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:40:16,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:40:16,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:40:16,564 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:40:16,564 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:40:16,564 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:40:16,564 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:40:16,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:40:16,565 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:40:16,565 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:40:16,565 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:40:16,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:40:16,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:40:16,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:40:16,636 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:40:16,636 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:40:16,637 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label03_false-unreach-call.c [2018-07-23 19:40:16,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b33d763/50867a4b3fc749b590a921012e71b39d/FLAG87636829a [2018-07-23 19:40:17,370 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:40:17,371 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label03_false-unreach-call.c [2018-07-23 19:40:17,398 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b33d763/50867a4b3fc749b590a921012e71b39d/FLAG87636829a [2018-07-23 19:40:17,422 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b33d763/50867a4b3fc749b590a921012e71b39d [2018-07-23 19:40:17,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:40:17,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:40:17,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:40:17,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:40:17,450 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:40:17,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:40:17" (1/1) ... [2018-07-23 19:40:17,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5928fdf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:17, skipping insertion in model container [2018-07-23 19:40:17,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:40:17" (1/1) ... [2018-07-23 19:40:17,767 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:40:18,402 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:40:18,426 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:40:18,781 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:40:18,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18 WrapperNode [2018-07-23 19:40:18,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:40:18,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:40:18,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:40:18,918 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:40:18,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:18,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:40:19,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:40:19,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:40:19,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:40:19,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... [2018-07-23 19:40:19,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:40:19,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:40:19,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:40:19,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:40:19,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:40:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:40:19,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:40:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:40:19,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:40:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:40:19,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:40:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:40:19,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:40:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:40:19,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:40:26,510 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:40:26,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:40:26 BoogieIcfgContainer [2018-07-23 19:40:26,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:40:26,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:40:26,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:40:26,516 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:40:26,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:40:17" (1/3) ... [2018-07-23 19:40:26,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48040024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:40:26, skipping insertion in model container [2018-07-23 19:40:26,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:40:18" (2/3) ... [2018-07-23 19:40:26,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48040024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:40:26, skipping insertion in model container [2018-07-23 19:40:26,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:40:26" (3/3) ... [2018-07-23 19:40:26,520 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label03_false-unreach-call.c [2018-07-23 19:40:26,530 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:40:26,539 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:40:26,591 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:40:26,592 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:40:26,592 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:40:26,592 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:40:26,592 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:40:26,592 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:40:26,593 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:40:26,593 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:40:26,593 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:40:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-23 19:40:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 19:40:26,632 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:40:26,633 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:40:26,633 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:40:26,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1859376252, now seen corresponding path program 1 times [2018-07-23 19:40:26,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:40:26,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:26,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:40:26,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:26,691 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:40:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:40:27,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:40:27,074 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:40:27,076 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:40:27,077 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:40:27,081 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:40:27,093 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:40:27,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:40:27,096 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-07-23 19:40:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:40:31,182 INFO L93 Difference]: Finished difference Result 1198 states and 2158 transitions. [2018-07-23 19:40:31,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:40:31,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-07-23 19:40:31,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:40:31,210 INFO L225 Difference]: With dead ends: 1198 [2018-07-23 19:40:31,211 INFO L226 Difference]: Without dead ends: 758 [2018-07-23 19:40:31,220 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:40:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2018-07-23 19:40:31,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 754. [2018-07-23 19:40:31,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2018-07-23 19:40:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1328 transitions. [2018-07-23 19:40:31,328 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1328 transitions. Word has length 30 [2018-07-23 19:40:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:40:31,328 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1328 transitions. [2018-07-23 19:40:31,329 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:40:31,329 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1328 transitions. [2018-07-23 19:40:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 19:40:31,335 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:40:31,336 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:40:31,336 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:40:31,337 INFO L82 PathProgramCache]: Analyzing trace with hash -90651264, now seen corresponding path program 1 times [2018-07-23 19:40:31,337 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:40:31,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:31,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:40:31,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:31,339 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:40:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:40:31,709 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:40:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:40:31,879 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:40:31,879 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:40:31,879 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:40:31,881 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:40:31,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:40:31,882 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:40:31,882 INFO L87 Difference]: Start difference. First operand 754 states and 1328 transitions. Second operand 6 states. [2018-07-23 19:40:41,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:40:41,804 INFO L93 Difference]: Finished difference Result 2140 states and 3804 transitions. [2018-07-23 19:40:41,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:40:41,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-23 19:40:41,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:40:41,821 INFO L225 Difference]: With dead ends: 2140 [2018-07-23 19:40:41,822 INFO L226 Difference]: Without dead ends: 1392 [2018-07-23 19:40:41,828 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:40:41,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2018-07-23 19:40:41,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1379. [2018-07-23 19:40:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2018-07-23 19:40:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2168 transitions. [2018-07-23 19:40:41,917 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2168 transitions. Word has length 104 [2018-07-23 19:40:41,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:40:41,917 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2168 transitions. [2018-07-23 19:40:41,918 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:40:41,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2168 transitions. [2018-07-23 19:40:41,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-23 19:40:41,921 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:40:41,922 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:40:41,922 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:40:41,926 INFO L82 PathProgramCache]: Analyzing trace with hash 540322824, now seen corresponding path program 1 times [2018-07-23 19:40:41,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:40:41,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:41,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:40:41,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:41,928 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:40:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:40:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:40:42,320 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:40:42,321 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:40:42,321 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:40:42,321 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:40:42,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:40:42,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:40:42,322 INFO L87 Difference]: Start difference. First operand 1379 states and 2168 transitions. Second operand 6 states. [2018-07-23 19:40:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:40:52,345 INFO L93 Difference]: Finished difference Result 3398 states and 5434 transitions. [2018-07-23 19:40:52,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:40:52,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-07-23 19:40:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:40:52,365 INFO L225 Difference]: With dead ends: 3398 [2018-07-23 19:40:52,366 INFO L226 Difference]: Without dead ends: 2025 [2018-07-23 19:40:52,374 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:40:52,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2018-07-23 19:40:52,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2003. [2018-07-23 19:40:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2003 states. [2018-07-23 19:40:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2887 transitions. [2018-07-23 19:40:52,455 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2887 transitions. Word has length 116 [2018-07-23 19:40:52,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:40:52,456 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 2887 transitions. [2018-07-23 19:40:52,456 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:40:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2887 transitions. [2018-07-23 19:40:52,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 19:40:52,466 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:40:52,467 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:40:52,467 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:40:52,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1165284124, now seen corresponding path program 1 times [2018-07-23 19:40:52,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:40:52,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:52,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:40:52,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:52,469 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:40:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:40:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:40:52,720 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:40:52,720 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:40:52,720 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:40:52,721 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:40:52,721 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:40:52,721 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:40:52,722 INFO L87 Difference]: Start difference. First operand 2003 states and 2887 transitions. Second operand 6 states. [2018-07-23 19:40:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:40:58,256 INFO L93 Difference]: Finished difference Result 4661 states and 6800 transitions. [2018-07-23 19:40:58,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:40:58,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-07-23 19:40:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:40:58,272 INFO L225 Difference]: With dead ends: 4661 [2018-07-23 19:40:58,272 INFO L226 Difference]: Without dead ends: 2664 [2018-07-23 19:40:58,281 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:40:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2018-07-23 19:40:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2636. [2018-07-23 19:40:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2636 states. [2018-07-23 19:40:58,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3543 transitions. [2018-07-23 19:40:58,351 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3543 transitions. Word has length 122 [2018-07-23 19:40:58,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:40:58,352 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3543 transitions. [2018-07-23 19:40:58,352 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:40:58,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3543 transitions. [2018-07-23 19:40:58,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-23 19:40:58,356 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:40:58,356 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:40:58,356 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:40:58,357 INFO L82 PathProgramCache]: Analyzing trace with hash -296015609, now seen corresponding path program 1 times [2018-07-23 19:40:58,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:40:58,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:58,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:40:58,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:58,358 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:40:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:40:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:40:58,910 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:40:58,911 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:40:58,911 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:40:58,912 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:40:58,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:40:58,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:40:58,913 INFO L87 Difference]: Start difference. First operand 2636 states and 3543 transitions. Second operand 6 states. [2018-07-23 19:41:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:41:09,290 INFO L93 Difference]: Finished difference Result 8424 states and 11627 transitions. [2018-07-23 19:41:09,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:41:09,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-07-23 19:41:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:41:09,323 INFO L225 Difference]: With dead ends: 8424 [2018-07-23 19:41:09,323 INFO L226 Difference]: Without dead ends: 5794 [2018-07-23 19:41:09,343 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:41:09,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5794 states. [2018-07-23 19:41:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5794 to 5674. [2018-07-23 19:41:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5674 states. [2018-07-23 19:41:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5674 states to 5674 states and 6911 transitions. [2018-07-23 19:41:09,500 INFO L78 Accepts]: Start accepts. Automaton has 5674 states and 6911 transitions. Word has length 154 [2018-07-23 19:41:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:41:09,501 INFO L471 AbstractCegarLoop]: Abstraction has 5674 states and 6911 transitions. [2018-07-23 19:41:09,501 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:41:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5674 states and 6911 transitions. [2018-07-23 19:41:09,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-23 19:41:09,507 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:41:09,507 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:41:09,507 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:41:09,508 INFO L82 PathProgramCache]: Analyzing trace with hash 364503928, now seen corresponding path program 1 times [2018-07-23 19:41:09,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:41:09,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:41:09,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:41:09,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:41:09,509 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:41:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:41:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-23 19:41:09,694 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:41:09,694 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:41:09,694 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:41:09,694 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:41:09,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:41:09,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:41:09,695 INFO L87 Difference]: Start difference. First operand 5674 states and 6911 transitions. Second operand 3 states. [2018-07-23 19:41:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:41:14,611 INFO L93 Difference]: Finished difference Result 16065 states and 20020 transitions. [2018-07-23 19:41:14,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:41:14,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-07-23 19:41:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:41:14,663 INFO L225 Difference]: With dead ends: 16065 [2018-07-23 19:41:14,664 INFO L226 Difference]: Without dead ends: 10397 [2018-07-23 19:41:14,691 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:41:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10397 states. [2018-07-23 19:41:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10397 to 10370. [2018-07-23 19:41:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10370 states. [2018-07-23 19:41:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10370 states to 10370 states and 12763 transitions. [2018-07-23 19:41:14,950 INFO L78 Accepts]: Start accepts. Automaton has 10370 states and 12763 transitions. Word has length 198 [2018-07-23 19:41:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:41:14,950 INFO L471 AbstractCegarLoop]: Abstraction has 10370 states and 12763 transitions. [2018-07-23 19:41:14,950 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:41:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 10370 states and 12763 transitions. [2018-07-23 19:41:14,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-07-23 19:41:14,962 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:41:14,962 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:41:14,963 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:41:14,963 INFO L82 PathProgramCache]: Analyzing trace with hash 750705500, now seen corresponding path program 1 times [2018-07-23 19:41:14,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:41:14,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:41:14,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:41:14,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:41:14,965 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:41:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:41:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-23 19:41:15,667 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:41:15,667 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:41:15,668 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-07-23 19:41:15,675 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [98], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [237], [239], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [641], [642], [646], [650], [654], [665], [669], [673], [677], [681], [692], [696], [700], [704], [708], [712], [716], [720], [731], [735], [738], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-23 19:41:15,773 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:41:15,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:41:21,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:41:21,588 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 19:41:21,597 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:41:25,713 INFO L232 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 77.64% of their original sizes. [2018-07-23 19:41:25,713 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:41:26,298 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:41:26,299 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:41:26,299 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-07-23 19:41:26,300 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:41:26,300 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 19:41:26,300 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 19:41:26,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:41:26,301 INFO L87 Difference]: Start difference. First operand 10370 states and 12763 transitions. Second operand 8 states. [2018-07-23 19:41:33,990 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:42:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:42:57,616 INFO L93 Difference]: Finished difference Result 21044 states and 25869 transitions. [2018-07-23 19:42:57,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:42:57,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 211 [2018-07-23 19:42:57,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:42:57,657 INFO L225 Difference]: With dead ends: 21044 [2018-07-23 19:42:57,658 INFO L226 Difference]: Without dead ends: 10680 [2018-07-23 19:42:57,684 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 19:42:57,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2018-07-23 19:42:57,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 10678. [2018-07-23 19:42:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10678 states. [2018-07-23 19:42:57,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10678 states to 10678 states and 13080 transitions. [2018-07-23 19:42:57,892 INFO L78 Accepts]: Start accepts. Automaton has 10678 states and 13080 transitions. Word has length 211 [2018-07-23 19:42:57,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:42:57,893 INFO L471 AbstractCegarLoop]: Abstraction has 10678 states and 13080 transitions. [2018-07-23 19:42:57,893 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 19:42:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 10678 states and 13080 transitions. [2018-07-23 19:42:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-07-23 19:42:57,903 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:42:57,903 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:42:57,904 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:42:57,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1626878960, now seen corresponding path program 1 times [2018-07-23 19:42:57,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:42:57,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:42:57,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:42:57,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:42:57,905 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:42:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:42:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 49 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-23 19:42:58,459 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:42:58,459 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:42:58,459 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-07-23 19:42:58,460 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [98], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [237], [239], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [665], [669], [673], [677], [681], [692], [696], [700], [704], [708], [712], [715], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [822], [833], [837], [840], [843], [847], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-23 19:42:58,466 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:42:58,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:43:02,448 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:43:23,435 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:43:23,435 INFO L272 AbstractInterpreter]: Visited 130 different actions 501 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:43:23,444 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:43:25,889 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 77.62% of their original sizes. [2018-07-23 19:43:25,890 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:43:26,924 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:43:26,925 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:43:26,925 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-07-23 19:43:26,925 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:26,926 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 19:43:26,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 19:43:26,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 19:43:26,926 INFO L87 Difference]: Start difference. First operand 10678 states and 13080 transitions. Second operand 12 states. Received shutdown request... [2018-07-23 19:44:00,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 19:44:00,216 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:44:00,222 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:44:00,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:44:00 BoogieIcfgContainer [2018-07-23 19:44:00,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:44:00,223 INFO L168 Benchmark]: Toolchain (without parser) took 222786.34 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -683.2 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-07-23 19:44:00,224 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 19:44:00,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1477.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 127.0 MB). Peak memory consumption was 127.0 MB. Max. memory is 7.1 GB. [2018-07-23 19:44:00,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 267.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:44:00,227 INFO L168 Benchmark]: Boogie Preprocessor took 686.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 888.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:44:00,228 INFO L168 Benchmark]: RCFGBuilder took 6638.66 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 315.9 MB). Peak memory consumption was 315.9 MB. Max. memory is 7.1 GB. [2018-07-23 19:44:00,228 INFO L168 Benchmark]: TraceAbstraction took 213710.14 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-23 19:44:00,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1477.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 127.0 MB). Peak memory consumption was 127.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 267.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 686.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 888.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6638.66 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 315.9 MB). Peak memory consumption was 315.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213710.14 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 76). Cancelled while BasicCegarLoop was constructing difference of abstraction (10678states) and interpolant automaton (currently 16 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (1168 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 213.6s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 169.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1707 SDtfs, 8851 SDslu, 1679 SDs, 0 SdLazy, 15351 SolverSat, 3469 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 116.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 518 GetRequests, 438 SyntacticMatches, 23 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10678occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 30.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9953269552587539 AbsIntWeakeningRatio, 0.11546840958605664 AbsIntAvgWeakeningVarsNumRemoved, 710.4291938997821 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 216 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1185 NumberOfCodeBlocks, 1185 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1177 ConstructedInterpolants, 0 QuantifiedInterpolants, 816219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 399/488 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label03_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-44-00-249.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label03_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-44-00-249.csv Completed graceful shutdown